The number of tourists from the Chinese mainland to Japan is expected to exceed 8 million in 2018, a record high, according to China's top online travel agency Ctrip.

Chinese tourists will spend more than 100 billion yuan (USD 14 billion) in Japan, Ctrip said in a report on Monday.

Young people make up the majority of the Japan-bound tourists. Of those making bookings on Ctrip, about 70% are under the age of 35, the report said.

Last year, the number of Chinese mainland tourists to Japan stood at 7.35 million, signaling double-digit growth, according to the report.